eprintid: 8714
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/87/14
datestamp: 2023-11-09 16:20:38
lastmod: 2023-11-09 16:20:38
status_changed: 2023-11-09 16:13:21
type: conference_item
metadata_visibility: show
creators_name: Javaid, M.Y.
creators_name: Ovinis, M.
creators_name: Hashim, F.B.M.
creators_name: Maimun, A.
creators_name: Ali, S.S.A.
creators_name: Ahmed, S.A.
title: Investigation on the dynamic stability of an underwater glider using CFD simulation
ispublished: pub
keywords: Angle of attack; Computation theory; Fluid dynamics; Propulsion; Stability, Angles of attack; CFD simulations; Hydrodynamic derivatives; Propulsion system; Rectilinear motion; Resistance tests; Underwater currents; Underwater gliders, Computational fluid dynamics
note: cited By 2; Conference of 6th IEEE International Conference on Underwater System Technology: Theory and Applications, USYS 2016 ; Conference Date: 13 December 2016 Through 14 December 2016; Conference Code:127275
abstract: Dynamic stability is an important consideration for an underwater glider because its slow motion makes it susceptible to underwater currents. This is compounded by its weak propulsion system whereby it self-propels by shifting its net buoyancy either positive or negative during forward motion. In this paper, steady state Computational Fluid Dynamic (CFD) simulation was used to evaluate the dynamic stability of a low-speed underwater glider. Fluid domains were generated for different flow velocities and angles of attack, for both rectilinear and rotary motions. For rectilinear motion, a straight line resistance test was replicated the tow tank resistance test. For rotary motion, a rotating arm setup was replicated and various angular velocities were numerically simulated. Hydrodynamic derivatives were obtained by extracting the slopes of the lift force and moment data points. The results showed that the dynamic stability of glider improved as the velocity and mass of the glider increases. © 2016 IEEE.
date: 2017
publisher: Institute of Electrical and Electronics Engineers Inc.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018342956&doi=10.1109%2fUSYS.2016.7893903&partnerID=40&md5=e7a299dce356f83f26fc16a431e6300a
id_number: 10.1109/USYS.2016.7893903
full_text_status: none
publication: USYS 2016 - 2016 IEEE 6th International Conference on Underwater System Technology: Theory and Applications
pagerange: 230-235
refereed: TRUE
isbn: 9781509057986
citation:   Javaid, M.Y. and Ovinis, M. and Hashim, F.B.M. and Maimun, A. and Ali, S.S.A. and Ahmed, S.A.  (2017) Investigation on the dynamic stability of an underwater glider using CFD simulation.  In: UNSPECIFIED.